The Rooster app curates suggestions for books to read then pushes them out to users in timed installments. Jennifer Lee, Rooster co-founder, explains how Rooster delivers bite-size books for people on the go.

CNBC's Jim Cramer speaks with Robert Hugin, Celgene chairman & CEO, about America's need to build a stronger and more sustainable ecosystem of innovation to continue as the world leader in biomedical innovation.